[U-Boot] [PATCH v2 0/6] Enhance support for BeagleBone Black

[U-Boot] [PATCH v2 0/6] Enhance support for BeagleBone Black

[Justin Waters]

There are a number of differences between the BeagleBone Black
and other AM335x boards that require some modification of the
default AM335x EVM configuration. In particular, it lacks NAND
flash, has multiple MMC interfaces, and can store its environment
in an unused eMMC partition.

The following patch set improves the out-of-box experience on the
BeagleBone Black by making the AM335x EVM configuration more modular,
and adding a few additional features.

Changes from v1:
 * Reordered the patches
 * Broke out the beagleboard target addition into a seperate patch
   so that it is independent of the other changes
 * Reversed the NAND logic- rather than using a new token, NO_NAND,
   I simply define NAND in the configurations for the other boards.
 * Fixed some bugs introduced by my mmcboot modifications

Justin Waters (6):
  am335x_evm: Make NAND support modular
  am335x_evm: Add command line editing
  am335x_evm: Rework bootcmd to handle two MMC devs
  Add additional MLO images to .gitignore
  am335x_evm: Add support for eMMC environment
  am335x_evm: Add am335x_boneblack variant

 .gitignore                   |    2 +-
 boards.cfg                   |   17 +++----
 include/configs/am335x_evm.h |  101 ++++++++++++++++++++++++++----------------
 3 files changed, 72 insertions(+), 48 deletions(-)

-- 
1.7.9.6

[U-Boot] [PATCH v2 1/6] am335x_evm: Make NAND support modular

[Justin Waters]

Give the user the ability to disable NAND support by defining
CONFIG_NO_NAND. This will allow custom hardware to easily support
this configuration.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 boards.cfg                   |   16 +++++++-------
 include/configs/am335x_evm.h |   49 ++++++++++++++++++++++++++----------------
 2 files changed, 39 insertions(+), 26 deletions(-)

diff --git a/boards.cfg b/boards.cfg
index c0c4282..c0cf446 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -241,14 +241,14 @@ integratorcp_cm946es         arm         arm946es    integrator          armltd
 vexpress_ca15_tc2            arm         armv7       vexpress            armltd
 vexpress_ca5x2               arm         armv7       vexpress            armltd
 vexpress_ca9x4               arm         armv7       vexpress            armltd
-am335x_evm                   arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1
-am335x_evm_spiboot           arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT
-am335x_evm_uart1             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL2,CONS_INDEX=2
-am335x_evm_uart2             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL3,CONS_INDEX=3
-am335x_evm_uart3             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL4,CONS_INDEX=4
-am335x_evm_uart4             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL5,CONS_INDEX=5
-am335x_evm_uart5             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL6,CONS_INDEX=6
-am335x_evm_usbspl            arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,SPL_USBETH_SUPPORT
+am335x_evm                   arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,NAND
+am335x_evm_spiboot           arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPI_BOOT
+am335x_evm_uart1             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL2,CONS_INDEX=2,NAND
+am335x_evm_uart2             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL3,CONS_INDEX=3,NAND
+am335x_evm_uart3             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL4,CONS_INDEX=4,NAND
+am335x_evm_uart4             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL5,CONS_INDEX=5,NAND
+am335x_evm_uart5             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL6,CONS_INDEX=6,NAND
+am335x_evm_usbspl            arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT
 ti814x_evm                   arm         armv7       ti814x              ti             am33xx
 pcm051                       arm         armv7       pcm051              phytec         am33xx      pcm051
 sama5d3xek_mmc               arm         armv7       sama5d3xek          atmel          at91        sama5d3xek:SAMA5D3,SYS_USE_MMC
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index c5a6d4b..c53bc21 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -48,6 +48,27 @@
 #define CONFIG_CMD_ASKENV
 #define CONFIG_VERSION_VARIABLE
 
+#ifdef CONFIG_NAND
+#define NANDARGS \
+	"mtdids=" MTDIDS_DEFAULT "\0" \
+	"mtdparts=" MTDPARTS_DEFAULT "\0" \
+	"nandargs=setenv bootargs console=${console} " \
+		"${optargs} " \
+		"root=${nandroot} " \
+		"rootfstype=${nandrootfstype}\0" \
+	"dfu_alt_info_nand=" DFU_ALT_INFO_NAND "\0" \
+	"nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
+	"nandrootfstype=ubifs rootwait=1\0" \
+	"nandsrcaddr=0x280000\0" \
+		"nandboot=echo Booting from nand ...; " \
+		"run nandargs; " \
+		"nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
+		"bootm ${loadaddr}\0" \
+	"nandimgsize=0x500000\0"
+#else
+#define NANDARGS ""
+#endif
+
 /* set to negative value for no autoboot */
 #define CONFIG_BOOTDELAY		1
 #define CONFIG_ENV_VARS_UBOOT_CONFIG
@@ -63,19 +84,12 @@
 	"fdtfile=undefined\0" \
 	"console=ttyO0,115200n8\0" \
 	"optargs=\0" \
-	"mtdids=" MTDIDS_DEFAULT "\0" \
-	"mtdparts=" MTDPARTS_DEFAULT "\0" \
 	"dfu_alt_info_mmc=" DFU_ALT_INFO_MMC "\0" \
 	"dfu_alt_info_emmc=rawemmc mmc 0 3751936\0" \
-	"dfu_alt_info_nand=" DFU_ALT_INFO_NAND "\0" \
 	"mmcdev=0\0" \
 	"mmcroot=/dev/mmcblk0p2 ro\0" \
 	"mmcrootfstype=ext4 rootwait\0" \
 	"bootpart=0:2\0" \
-	"nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
-	"nandrootfstype=ubifs rootwait=1\0" \
-	"nandsrcaddr=0x280000\0" \
-	"nandimgsize=0x500000\0" \
 	"rootpath=/export/rootfs\0" \
 	"nfsopts=nolock\0" \
 	"static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
@@ -86,10 +100,6 @@
 		"${optargs} " \
 		"root=${mmcroot} " \
 		"rootfstype=${mmcrootfstype}\0" \
-	"nandargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=${nandroot} " \
-		"rootfstype=${nandrootfstype}\0" \
 	"spiroot=/dev/mtdblock4 rw\0" \
 	"spirootfstype=jffs2\0" \
 	"spisrcaddr=0xe0000\0" \
@@ -118,10 +128,6 @@
 	"mmcboot=echo Booting from mmc ...; " \
 		"run mmcargs; " \
 		"bootm ${loadaddr} - ${fdtaddr}\0" \
-	"nandboot=echo Booting from nand ...; " \
-		"run nandargs; " \
-		"nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
-		"bootm ${loadaddr}\0" \
 	"spiboot=echo Booting from spi ...; " \
 		"run spiargs; " \
 		"sf probe ${spibusno}:0; " \
@@ -147,7 +153,8 @@
 		"if test $board_name = A335X_SK; then " \
 			"setenv fdtfile am335x-evmsk.dtb; fi; " \
 		"if test $fdtfile = undefined; then " \
-			"echo WARNING: Could not determine device tree to use; fi; \0"
+			"echo WARNING: Could not determine device tree to use; fi; \0" \
+	NANDARGS
 #endif
 
 #define CONFIG_BOOTCOMMAND \
@@ -231,7 +238,6 @@
 /* USB Device Firmware Update support */
 #define CONFIG_DFU_FUNCTION
 #define CONFIG_DFU_MMC
-#define CONFIG_DFU_NAND
 #define CONFIG_CMD_DFU
 #define DFU_ALT_INFO_MMC \
 	"boot part 0 1;" \
@@ -241,6 +247,8 @@
 	"u-boot.img.raw mmc 300 3C0;" \
 	"u-boot.img fat 0 1;" \
 	"uEnv.txt fat 0 1"
+#ifdef CONFIG_NAND
+#define CONFIG_DFU_NAND
 #define DFU_ALT_INFO_NAND \
 	"SPL part 0 1;" \
 	"SPL.backup1 part 0 2;" \
@@ -249,6 +257,7 @@
 	"u-boot part 0 5;" \
 	"kernel part 0 7;" \
 	"rootfs part 0 8"
+#endif
 
  /* Physical Memory Map */
 #define CONFIG_NR_DRAM_BANKS		1		/*  1 bank of DRAM */
@@ -337,9 +346,11 @@
 #define CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS	8     /* 4KB */
 
 /* nand */
+#ifdef CONFIG_NAND
 #define CONFIG_CMD_SPL_NAND_OFS			0x240000 /* end of u-boot */
 #define CONFIG_SYS_NAND_SPL_KERNEL_OFFS		0x280000
 #define CONFIG_CMD_SPL_WRITE_SIZE		0x1000
+#endif
 
 /* spl export command */
 #define CONFIG_CMD_SPL
@@ -369,6 +380,8 @@
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/am33xx/u-boot-spl.lds"
 
 #define CONFIG_SPL_BOARD_INIT
+
+#ifdef CONFIG_NAND
 #define CONFIG_SPL_NAND_AM33XX_BCH
 #define CONFIG_SPL_NAND_SUPPORT
 #define CONFIG_SPL_NAND_BASE
@@ -395,6 +408,7 @@
 #define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
 
 #define CONFIG_SYS_NAND_U_BOOT_OFFS	0x80000
+#endif
 
 /*
  * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
@@ -490,7 +504,6 @@
 #define CONFIG_PHY_ADDR			0
 #define CONFIG_PHY_SMSC
 
-#define CONFIG_NAND
 /* NAND support */
 #ifdef CONFIG_NAND
 #define CONFIG_CMD_NAND
-- 
1.7.9.6

[U-Boot] [PATCH v2 2/6] am335x_evm: Add command line editing

[Justin Waters]

Many modern U-Boot ports enable command line editing and
a history buffer. The am335x_evm configuration is fairly
comprehensive as it is, so a few extra kb should not be
noticable, and it adds a very convenient feature.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 include/configs/am335x_evm.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index c53bc21..ea68b57 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -37,6 +37,9 @@
 #define CONFIG_OF_LIBFDT
 #define CONFIG_CMD_BOOTZ
 #define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_STACKSIZE		(128 * 1024)
+#define CONFIG_AUTO_COMPLETE
 #define CONFIG_SETUP_MEMORY_TAGS
 #define CONFIG_INITRD_TAG
 
-- 
1.7.9.6

[U-Boot] [PATCH v2 3/6] am335x_evm: Rework bootcmd to handle two MMC devs

[Justin Waters]

The BeagleBone Black can boot from either the MMC card
or eMMC chip on board. We should try both interfaces.

This modification also allows a graceful fallback if
a device exists but boot images are not present on it.

Changes for v2:

* Fix boot partition - it should always show up as mmcblk0p2
* Fix missing FDT load

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 include/configs/am335x_evm.h |   42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index ea68b57..0df0e7a 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -128,9 +128,23 @@
 	"loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
 	"loaduimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
 	"loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
-	"mmcboot=echo Booting from mmc ...; " \
-		"run mmcargs; " \
-		"bootm ${loadaddr} - ${fdtaddr}\0" \
+	"mmcboot=mmc dev ${mmcdev}; " \
+		"if mmc rescan; then " \
+			"echo SD/MMC found on device ${mmcdev};" \
+			"if run loadbootenv; then " \
+				"echo Loaded environment from ${bootenv};" \
+				"run importbootenv;" \
+			"fi;" \
+			"if test -n $uenvcmd; then " \
+				"echo Running uenvcmd ...;" \
+				"run uenvcmd;" \
+			"fi;" \
+			"if run loaduimage; then " \
+				"run loadfdt;" \
+				"run mmcargs; " \
+				"bootm ${loadaddr} - ${fdtaddr};" \
+			"fi;" \
+		"fi;\0" \
 	"spiboot=echo Booting from spi ...; " \
 		"run spiargs; " \
 		"sf probe ${spibusno}:0; " \
@@ -162,23 +176,11 @@
 
 #define CONFIG_BOOTCOMMAND \
 	"run findfdt; " \
-	"mmc dev ${mmcdev}; if mmc rescan; then " \
-		"echo SD/MMC found on device ${mmcdev};" \
-		"if run loadbootenv; then " \
-			"echo Loaded environment from ${bootenv};" \
-			"run importbootenv;" \
-		"fi;" \
-		"if test -n $uenvcmd; then " \
-			"echo Running uenvcmd ...;" \
-			"run uenvcmd;" \
-		"fi;" \
-		"if run loaduimage; then " \
-			"run loadfdt;" \
-			"run mmcboot;" \
-		"fi;" \
-	"else " \
-		"run nandboot;" \
-	"fi;" \
+	"run mmcboot;" \
+	"setenv mmcdev 1; " \
+	"setenv bootpart 1:2; " \
+	"run mmcboot;" \
+	"run nandboot;"
 
 /* Clock Defines */
 #define V_OSCK				24000000  /* Clock output from T2 */
-- 
1.7.9.6

[U-Boot] [PATCH v2 4/6] Add additional MLO images to .gitignore

[Justin Waters]

This rule catches images such as MLO.byteswap

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 .gitignore |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index 771b860..d1282e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -24,7 +24,7 @@
 # Top-level generic files
 #
 
-/MLO
+/MLO*
 /SPL
 /System.map
 /u-boot
-- 
1.7.9.6

[U-Boot] [PATCH v2 5/6] am335x_evm: Add support for eMMC environment

[Justin Waters]

Some boards, such as the BeagleBone Black, have an eMMC chip intstead
of NAND. We can use the eMMC boot partition to store the environment,
since it isn't used for anything else. This allows us to have a
configurable environment on those boards.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 include/configs/am335x_evm.h |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 0df0e7a..e3f75cd 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -486,7 +486,12 @@
 # define CONFIG_ENV_SPI_MAX_HZ		CONFIG_SF_DEFAULT_SPEED
 # define CONFIG_ENV_OFFSET		(892 << 10) /* 892 KiB in */
 # define CONFIG_ENV_SECT_SIZE		(4 << 10) /* 4 KB sectors */
-#endif /* SPI support */
+#elif defined(CONFIG_EMMC_BOOT)
+# undef CONFIG_ENV_IS_NOWHERE
+# define CONFIG_ENV_IS_IN_MMC
+# define CONFIG_SYS_MMC_ENV_DEV		1
+# define CONFIG_SYS_MMC_ENV_PART	2
+#endif
 
 /* Unsupported features */
 #undef CONFIG_USE_IRQ
-- 
1.7.9.6

[U-Boot] [PATCH v2 6/6] am335x_evm: Add am335x_boneblack variant

[Justin Waters]

The BeagleBone Black differs from the other AM335x boards in a few
significant ways, so it makes sense to create a custom configuration
for it. In particular, it uses eMMC instead of NAND flash.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 boards.cfg |    1 +
 1 file changed, 1 insertion(+)

diff --git a/boards.cfg b/boards.cfg
index c0cf446..461f69b 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -249,6 +249,7 @@ am335x_evm_uart3             arm         armv7       am335x              ti
 am335x_evm_uart4             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL5,CONS_INDEX=5,NAND
 am335x_evm_uart5             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL6,CONS_INDEX=6,NAND
 am335x_evm_usbspl            arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT
+am335x_boneblack             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,EMMC_BOOT
 ti814x_evm                   arm         armv7       ti814x              ti             am33xx
 pcm051                       arm         armv7       pcm051              phytec         am33xx      pcm051
 sama5d3xek_mmc               arm         armv7       sama5d3xek          atmel          at91        sama5d3xek:SAMA5D3,SYS_USE_MMC
-- 
1.7.9.6

[U-Boot] [PATCH v2 1/6] am335x_evm: Make NAND support modular

[Stefan Agner]

Am 2013-07-11 15:54, schrieb Justin Waters:
> Give the user the ability to disable NAND support by defining
> CONFIG_NO_NAND. This will allow custom hardware to easily support
> this configuration.

If NAND is not enabled, we could also ifdef the SPI/MTD/CMD_FS
configurations since they are not used on BeagleBone Black either. Maybe
something for a follow-up patch rather than a new version of this
patchset.

--
Stefan

[U-Boot] [PATCH v2 0/6] Enhance support for BeagleBone Black

[Stefan Agner]

Hi,

Am 2013-07-11 15:54, schrieb Justin Waters:
> Justin Waters (6):
>   am335x_evm: Make NAND support modular
>   am335x_evm: Add command line editing
>   am335x_evm: Rework bootcmd to handle two MMC devs
>   Add additional MLO images to .gitignore
>   am335x_evm: Add support for eMMC environment
>   am335x_evm: Add am335x_boneblack variant

Applied your patches on v2013.07-rc3 and compiled the beaglebone target.
Works fine on my BeagleBone Black.

Tested-by: Stefan Agner <stefan@agner.ch>

--
Stefan

[U-Boot] [PATCH v2 1/6] am335x_evm: Make NAND support modular

[Justin Waters]

Stefan,

On Fri, 2013-07-12 at 07:30 -0400, Stefan Agner wrote:
> Am 2013-07-11 15:54, schrieb Justin Waters:
> > Give the user the ability to disable NAND support by defining
> > CONFIG_NO_NAND. This will allow custom hardware to easily support
> > this configuration.
> 
> If NAND is not enabled, we could also ifdef the SPI/MTD/CMD_FS
> configurations since they are not used on BeagleBone Black either. Maybe
> something for a follow-up patch rather than a new version of this
> patchset.

Agreed on all accounts. I focused on the NAND mostly because the logic
was gumming up the environment storage, and I needed it out of the way
for the eMMC boot. It was an added bonus that it decreases the image
size and cleans up the initialization. The others were more innocuous,
so I skipped them for the time being.

-Justin

[U-Boot] [PATCH v2 6/6] am335x_evm: Add am335x_boneblack variant

[Tom Rini]

On Thu, Jul 11, 2013 at 09:55:03AM -0400, Justin Waters wrote:
> The BeagleBone Black differs from the other AM335x boards in a few
> significant ways, so it makes sense to create a custom configuration
> for it. In particular, it uses eMMC instead of NAND flash.
> 
> Signed-off-by: Justin Waters <justin.waters@timesys.com>
> ---
>  boards.cfg |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/boards.cfg b/boards.cfg
> index c0cf446..461f69b 100644
> --- a/boards.cfg
> +++ b/boards.cfg
> @@ -249,6 +249,7 @@ am335x_evm_uart3             arm         armv7       am335x              ti
>  am335x_evm_uart4             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL5,CONS_INDEX=5,NAND
>  am335x_evm_uart5             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL6,CONS_INDEX=6,NAND
>  am335x_evm_usbspl            arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,NAND,SPL_USBETH_SUPPORT
> +am335x_boneblack             arm         armv7       am335x              ti             am33xx      am335x_evm:SERIAL1,CONS_INDEX=1,EMMC_BOOT
>  ti814x_evm                   arm         armv7       ti814x              ti             am33xx
>  pcm051                       arm         armv7       pcm051              phytec         am33xx      pcm051
>  sama5d3xek_mmc               arm         armv7       sama5d3xek          atmel          at91        sama5d3xek:SAMA5D3,SYS_USE_MMC

One minor nit, do we have room for SPL_USBETH_SUPPORT since you turned
off NAND?  I bet you do, and the default sysboot pins will try USB too.

-- 
Tom
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[U-Boot] [PATCH v2 0/6] Enhance support for BeagleBone Black

[Tom Rini]

On Thu, Jul 11, 2013 at 09:54:57AM -0400, Justin Waters wrote:

> There are a number of differences between the BeagleBone Black
> and other AM335x boards that require some modification of the
> default AM335x EVM configuration. In particular, it lacks NAND
> flash, has multiple MMC interfaces, and can store its environment
> in an unused eMMC partition.
> 
> The following patch set improves the out-of-box experience on the
> BeagleBone Black by making the AM335x EVM configuration more modular,
> and adding a few additional features.
> 
> Changes from v1:
>  * Reordered the patches
>  * Broke out the beagleboard target addition into a seperate patch
>    so that it is independent of the other changes
>  * Reversed the NAND logic- rather than using a new token, NO_NAND,
>    I simply define NAND in the configurations for the other boards.
>  * Fixed some bugs introduced by my mmcboot modifications
> 
> Justin Waters (6):
>   am335x_evm: Make NAND support modular
>   am335x_evm: Add command line editing
>   am335x_evm: Rework bootcmd to handle two MMC devs
>   Add additional MLO images to .gitignore
>   am335x_evm: Add support for eMMC environment
>   am335x_evm: Add am335x_boneblack variant
> 
>  .gitignore                   |    2 +-
>  boards.cfg                   |   17 +++----
>  include/configs/am335x_evm.h |  101 ++++++++++++++++++++++++++----------------
>  3 files changed, 72 insertions(+), 48 deletions(-)

Applied to u-boot-ti/master, thanks!

-- 
Tom
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